41.   But shuttle managers were reluctant to proceed with additions to the solar power system without replacing the primary wrist joint assembly.

42.   But what makes this tale stand out is the arrival of solar power.

43.   California may be suddenly awash in electric power, and prices of oil and natural gas may have fallen, but the solar electric power industry is still booming.

44.   By the time technicians discovered the problem, the satellite had lost solar power and discharged most of the energy in its batteries.

45.   Companies that make solar power equipment are expanding rapidly to keep up with demand.

46.   Compared with solar power, electric cars and other energy exotica, it appeared to be a simple solution.

47.   Department of Water and Power officials say so many homeowners have requested rebatable solar power systems it now takes up to three months to get one on the roof.

48.   Enron Corp., a Houston-based energy company, has a renewables subsidiary that generates wind and solar power.

49.   Even if we set aside the environmental argument for solar power, the economic one should be enough.

50.   Even the most optimistic supporters of solar power have doubted that they would see commercially competitive production until the next century.